Re: IH 340 head gasket

Thanks Ed! I was just seeing if anyone had seen it help or if anyone had known the head bolts to loosen up over time.As for the severity of the leak, I knew it had been seeping externally for some time, but didn't worry about it. I just ran it with the radiator cap loose so it didn;t pressurize the system. Today, when I was moving snow, I foolishly tigthened the cap. After a little while, I had engine misfire, white smoke out the exhaust, and steam coming out from under the head on both sides of the block! It appears there's only about a quart or two of coolant in the oil. Am I going to end up buying bearings for it too?Thanks!

If you run it you will sure ruin it.Tightening that head will not "cure" the issue. Retorqueing several hundred hours ago might have helped but not now. If you have operated it for several hours overheating, or with coolant in the sump, it well may need bearings and a turned crank.If it was quiet, and not much time spent operating with coolant as lubricant, it might be OK with a head gasket. Jim

gasket is blown! pull head. only quart or two of coolant in oil... that is way too much. pickup screen is on bottom of pan coolant is on bottom of pan. not good. is this gas or diesel engine? sounds like a diesel as they do have head gasket problems as all those diesels do of that design. head has to come off so may as well pull pan and check brgs. then you know what you have.

Fast Shipping! Most of our stocked parts ship within 24 hours (M-Th). Expedited shipping available, just call! Most prices for parts and manuals are below our competitors. Compare our super low shipping rates! We have the parts you need to repair your tractor. We are a company you can trust and have generous return policies. Shop Online Today or call our friendly sales staff toll free (800) 853-2651. [ About Us ]

All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy

TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.